Home / 112,511.72-155,261.22-62,209.64

Finding the Fourth Proportional to 112,511.72, 155,261.22 and 62,209.64

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Solution

The fourth proportional to 112,511.72, 155,261.22 and 62,209.64 is: 85,846.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,511.72 : 155,261.22 = 62,209.64 : x
  2. Step 2: Convert to fraction form
    112,511.72/155,261.22 = 62,209.64/x
  3. Step 3: Cross multiply
    112,511.72x = 155,261.22 × 62,209.64
  4. Step 4: Simplify right side
    112,511.72x = 9,658,744,602.16
  5. Step 5: Solve for x
    x = 9,658,744,602.16/112,511.72
  6. Step 6: Final answer
    x = 85,846.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.